KR920002184Y1 - Circuit controlling voltage for car - Google Patents

Circuit controlling voltage for car Download PDF

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Publication number
KR920002184Y1
KR920002184Y1 KR2019890008094U KR890008094U KR920002184Y1 KR 920002184 Y1 KR920002184 Y1 KR 920002184Y1 KR 2019890008094 U KR2019890008094 U KR 2019890008094U KR 890008094 U KR890008094 U KR 890008094U KR 920002184 Y1 KR920002184 Y1 KR 920002184Y1
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transistor
turned
voltage
current
vehicle
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KR2019890008094U
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KR910001685U (en
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오현웅
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오현웅
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00Circuit arrangements for dc mains or dc distribution networks
    • H02J1/02Arrangements for reducing harmonics or ripples
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Charge By Means Of Generators (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

내용 없음.No content.

Description

차량용 전압조정기회로Voltage regulator circuit for vehicle

제 1 도는 본 고안에 따른 실시예의 회로도.1 is a circuit diagram of an embodiment according to the present invention.

제 2 도는 종래 차량용 전압조정기회로의 회로도이다.2 is a circuit diagram of a conventional vehicle voltage regulator circuit.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 발전부 2 : 전압조정부1: power generating unit 2: voltage adjusting unit

3 : 충전표시부 4 : 전원부3 charge display 4 power unit

5 : 멀티발진회로 G : 발진기5: multi-oscillator circuit G: oscillator

RC : 정류기 IG : 점화전압단자RC: Rectifier IG: Ignition Voltage Terminal

L : 램프단자 N : 중성점단자L: Lamp terminal N: Neutral point terminal

F : 계자입력단자 E : 접지단자F: Field input terminal E: Ground terminal

FC : 계자코일 SW : 스위치FC: Field coil SW: Switch

BT : 축전지 TR1~TR8 : 트랜지스터BT: Storage battery TR1 ~ TR8: Transistor

R1~R14 : 저항 C1~C6 : 콘덴서R1 ~ R14: Resistor C1 ~ C6: Capacitor

D1, D2 : 다이오드 ZD : 제너다이오드D1, D2: Diode ZD: Zener Diode

TD : 온도보상용 다이오드TD: Temperature Compensation Diode

[산업상의 이용분야][Industrial use]

본 고안은 차량용 전압조정기회로에 관한 것으로서, 특히 멀티발진회로를 이용하여 시동시 발전기의 계자전류를 미소전류만으로 제한해 줄수 있도록 된 차량용 전압조정기회로에 관한 것이다.The present invention relates to a voltage regulator circuit for a vehicle, and more particularly to a voltage regulator circuit for a vehicle that can limit the field current of the generator at the start using a multi-oscillation circuit to only a small current.

[종래의 기술 및 문제점]Conventional Technology and Issues

일반적으로 차량용 전압조정기는 차량의 전압을 일정하게 유지시켜 주도록 하기 위해 사용되는 것인바, 종래의 차량용 전압조정기회로에서는 시동스위치를 닫음과 동시에 축전지의 전원이 스위칭용 트랜지스터를 통해 막바로 발전기의 계자코일로 인가되게 되어 있으므로, 자동차에 충격이 가해지거나 기기자체가 노후됨으로 인해 계자코일양단이 쇼트될 경우에는 순간적으로 큰 전류가 흐르게 되어 스위칭용 트랜지스터같은 제어회로소자들이 파괴될 뿐만아니라, 정상적인 상태라하더라도 시동전동기의 기동으로 인한 급격한 전류의 유입으로 서어지전압이 발생하여 회로소자가 손상될 수도 있는 등의 문제점이 있었다.In general, a vehicle voltage regulator is used to maintain a constant voltage of the vehicle. In the conventional vehicle voltage regulator circuit, the power source of the battery is immediately closed through the switching transistor and the field coil of the generator is closed by closing the start switch. If the both ends of the field coil are shorted due to the impact on the vehicle or the device itself is old, a large current flows momentarily and not only the control circuit elements such as switching transistors are destroyed, but also under normal conditions. There was a problem such that a surge voltage may be generated due to a rapid inflow of current due to the start-up of a starting motor, resulting in damage to a circuit element.

상기한 문제점을 해결하기 위해 본 출원인은 제 2 도에 도시된 바와같은 차량용 전압조정기회로를 개발하여 실용신안등록출원 제 88-11906호로 출원한 바 있는데, 이 차량용 전압조정기회로는 시동스위치(SW)가 ON될 경우, 충전표시부(3)의 표시램프(PL)로 흐르는 전류에 의해 트랜지스터(TR7)가 도통됨에 따라 전압조정부(2)의 트랜지스터(TR4)가 도통되게 됨으로써, 트랜지스터(TR1)의 베이스에 저항(R1)을 통해 미소한 전류가 인가되게 되고, 그에따라 트랜지스터(TR1)는 도통되어 상기 미소한 베이스전류에 따라 발전기(G)의 구동에 필요한 최소한 전류만이 흐르도록 된것이었다. 그러나, 이러한 종래의 차량용 전압조정기회로에 의하면 차량의 시동시 급격한 전류의 유입으로 계자코일(FC)에 서어지전압이 발생되는 것을 방지할 수 있으나, 시동시간이 길어질 경우 저항(R1)에 의해 트랜지스터(TR1)에 미소한 전류가 계속 흐르게 됨으로써 트랜지스터(TR1)가 그 내부에 발생하는 열에 의해 쉽게 파손된다고 하는 결점을 갖고 있었다.In order to solve the above problems, the present applicant has developed a vehicle voltage regulator circuit as shown in FIG. 2 and filed it as Utility Model Registration No. 88-11906. The vehicle voltage regulator circuit has a start switch (SW). Is turned on, the transistor TR4 of the voltage adjusting unit 2 is turned on as the transistor TR7 is turned on by the current flowing to the display lamp PL of the charge display unit 3, thereby causing the base of the transistor TR1 to be turned on. A small current is applied through the resistor R1, so that the transistor TR1 is turned on so that only the minimum current required to drive the generator G flows according to the small base current. However, according to the conventional vehicle voltage regulator circuit, a surge voltage may be prevented from occurring in the field coil FC due to the rapid inflow of current when the vehicle is started. However, when the startup time is prolonged, the transistor is prevented by the resistor R1. As a small current continues to flow in TR1, the transistor TR1 is easily damaged by heat generated therein.

[고안의 목적][Purpose of designation]

이에 본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 전압조정부에 계자전원공급용 스위칭 트랜지스터를 스위칭시켜주는 멀티발진회로를 설치함으로써, 시동시에 계자전원공급용 스위칭트랜지스터에 미소전류가 장시간 흐르게 되는 것을 방지하여 상기 스위칭트랜지스터가 열에 의해 파손되는 문제를 해소할 수 있도록 된 차량용 전압조정기회로를 제공하고자 함에 그 목적이 있다.The present invention has been made to solve the above problems, and by installing a multi-oscillation circuit for switching the field power supply switching transistor in the voltage adjustment section, a small current is long in the field power supply switching transistor at start-up It is an object of the present invention to provide a voltage regulator circuit for a vehicle that can prevent the flow of the switching transistor to be broken by heat.

[고안의 구성][Composition of design]

상기 목적을 달성하기 위한 본 고안은, 발전부(1)와 전압조정부(2)의 충전표시부(3)및 전원부(4)로 이루어진 차량용 전압조정기회로에 있어서, 상기 전압 조정부(2)에 미소전류제어용 트랜지스터(TR4, TR5)와 저항(R5, R8, R9) 및 콘덴서(C4, C5)로 구성되어 상기 충전표시부(3)와 결속되는 멀티발진회로(5)가 내재된 구조로 되어 있다.The present invention for achieving the above object, in the vehicle voltage regulator circuit consisting of the power generation unit 1, the charge display unit 3 and the power supply unit 4 of the voltage adjusting unit 2, a small current in the voltage adjusting unit 2 The control transistors TR4 and TR5, resistors R5, R8 and R9, and capacitors C4 and C5 have a structure in which the multi-oscillation circuit 5 which is coupled to the charging display unit 3 is inherent.

[작용][Action]

상기와 같이 구성된 본 고안은, 시동시에 충전표시부(3)의 스위칭용 트랜지스터(TR7)와 멀티발진회로(5)를 구성하는 트랜지스터(TR4, TR5)가 전압조정부(2)의 트랜지스터(TR1~TR3)를 제어해줌으로써, 트랜지스터(TR1)를 통해 공급되는 계자전류를 소정치(정상계자전류의 1/10정도)이하로 제한해주고, 이어 발진기(G)가 정상구동 될때에는 트랜지스터(TR1~TR3)를 통해 정상적인 전류가 공급될 수 있도록 해주며, 제너다이오드(ZD)와 저항(R3, R6, R7)을 이용하여 축전지(BT)가 과도하게 충전되는 것을 차단해 줌으로써, 전압을 안정되게 유지공급해 줄 수 있게 된다.According to the present invention configured as described above, the transistors TR4 and TR5 constituting the switching transistor TR7 of the charge display unit 3 and the multi oscillation circuit 5 at start-up are the transistors TR1 to T1 of the voltage adjusting unit 2. By controlling TR3, the field current supplied through the transistor TR1 is limited to less than a predetermined value (about 1/10 of the normal field current), and then the transistors TR1 to TR3 when the oscillator G is normally driven. Normal current can be supplied through) and zener diode (ZD) and resistors (R3, R6, R7) are used to prevent the battery BT from being overcharged, thereby maintaining a stable voltage. I can give it.

[실시예]EXAMPLE

이하, 본 고안에 따른 실시예를 예시도면에 의거 상세히 설명한다.Hereinafter, the embodiment according to the present invention will be described in detail based on the drawings.

제 1 도는 본 고안에 따른 실시예의 회로도로서, 여기에는 발전부(1)와 전압조정부(2), 충전표시부(3) 및 전원부(4)의 구성이 상세히 도시되어져 있는바, 우선 이 실시예의 기본동작을 설명하면 다음과 같다.1 is a circuit diagram of an embodiment according to the present invention, in which the configuration of the power generation unit 1, the voltage adjusting unit 2, the charging display unit 3, and the power supply unit 4 is shown in detail. The operation is described as follows.

전원부(4)의 스위치(SW)가 ON되면, 축전지(BT)의 전원이 점화전압단자(IG)에 연결된 충전표시부(3)와 전압조정부(2)를 거쳐 계자입력단자(F)를 통해 발전부(1)의 계자코일(FC)로 인가되게 되는데, 이때 전압조정부(2)는 이 계자코일(FC)에 가해지는 전류를 제어해줌으로써 축전지(BT)의 전압이 일정하게 유지되도록 동작한다. 이를 좀더 상세히 설명하면, 점화전압단자(IG)의 전압이 기준치 이하일 경우, 전압조정부(2)의 저항(R3, R6, R7)에 의한 분업에 의해 제너다이오드(ZD)가 불통상태를 유지하게 되므로써 트랜지스터(TR3)가 OFF되고 트랜지스터(TR2)는 ON상태로 되어, 결국 트랜지스터(TR1)가 도통되게 되므로, 계자코일(FC)에 계자전류가 흐르게 된다. 이어 이 계자전류로 인해 발전기(G)가 동작하게 되고, 그러한 발전동작으로 인해 유기된 전력은 정류기(RC)에서 정류된 다음 점화전원단자(IG)를 통해 전원부(4)의 축전지(BT)로 공급되어 축전지(BT)를 재충전시켜주게 된다.When the switch SW of the power supply unit 4 is turned on, power of the storage battery BT is generated through the field input terminal F via the charge display unit 3 and the voltage adjusting unit 2 connected to the ignition voltage terminal IG. It is applied to the field coil (FC) of the negative (1), the voltage adjusting unit 2 operates to control the current applied to the field coil (FC) to maintain a constant voltage of the battery (BT). In more detail, when the voltage of the ignition voltage terminal IG is lower than the reference value, the zener diode ZD is maintained in an uninterrupted state by division of labor by the resistors R3, R6, and R7 of the voltage adjusting unit 2. Since the transistor TR3 is turned off and the transistor TR2 is turned on, and eventually the transistor TR1 is turned on, the field current flows through the field coil FC. Subsequently, the field current causes the generator G to operate, and the generated power is rectified in the rectifier RC and then to the storage battery BT of the power supply unit 4 through the ignition power terminal IG. It is supplied to recharge the storage battery BT.

이때 축전지(BT)가 충분히 충전되어 기준치 이상으로 충전되면, 전압조정부(2)의 제너다이오드(ZD)가 저항(R6, R7)에 의해 설정된 높은 전위차에 의해 항복되게 되며, 그 때문에 트랜지스터(TR3)가 ON되고 트랜지스터(TR2)가 OFF되어져 결국 트랜지스터(TR1)가 OFF되게 됨으로써, 계자코일(FC)로 인가되는 전류가 차단시켜지게 된다. 이와같은 동작이 반복됨에 따라 점화전압단자(IG)의 전위가 기준치의 일정전압으로 유지되게 되는 것이다. 여기서 계자단자(F)와 접지단자(E)사이에 설치된 다이오드(D1)는 계자코일(FC)의 역기전력을 방지해 주기 위한 것이고, 저항(R1) 및 콘덴서(C2, C3)는 발진방지용 궤환소자로 이용된다.At this time, when the storage battery BT is sufficiently charged and charged above the reference value, the zener diode ZD of the voltage adjusting unit 2 is surrendered by the high potential difference set by the resistors R6 and R7, and hence the transistor TR3. Is turned on and the transistor TR2 is turned off so that the transistor TR1 is turned off, thereby interrupting the current applied to the field coil FC. As this operation is repeated, the potential of the ignition voltage terminal IG is maintained at a constant voltage of the reference value. Here, the diode D1 installed between the field terminal F and the ground terminal E is for preventing the counter electromotive force of the field coil FC, and the resistors R1 and capacitors C2 and C3 are oscillation preventing feedback elements. Used as

다음에는 멀티발진회로(5)를 중심으로 하는 본 실시예의 특징적인 동작을 설명한다.Next, the characteristic operation of this embodiment centering on the multi-oscillation circuit 5 will be described.

제 1 도에서 전원부(4)의 스위치(SW)가 ON되면 저항(R13)을 통해 트랜지스터(TR4, TR8)가 각각 도통되어 표시램프(PL)가 점등되는데, 이때 충전표시부(3)의 표시램프(PL)로 흐르는 전류가 트랜지스터(TR7)도 도통시켜 전압조정부(2)의 트랜지스터(TR4, TR5)로 구성된 멀티발진회로(5)가 작동하게 된다. 이러한 멀티발진회로(5)의 작동으로 트랜지스터(TR3)의 베이스전류가 단속되므로써 트랜지스터(TR1, TR2)는 빠른 속도로 ON, OFF동작을 반복하게 되어, 발전기(G)의 기동에 필요한 최소한의 전류만이 흐르게 된다. 따라서 종래의 경우처럼 트랜지스터(TR1)에 전류가 계속흘러서 트랜지스터(TR1)가 파손될 우려를 최소화할 수 있게 된다.In FIG. 1, when the switch SW of the power supply unit 4 is turned on, the transistors TR4 and TR8 are turned on through the resistor R13, and the display lamp PL is turned on. In this case, the display lamp of the charge display unit 3 is turned on. The current flowing to PL also conducts the transistor TR7 so that the multi-oscillation circuit 5 composed of the transistors TR4 and TR5 of the voltage adjusting section 2 is operated. Since the base current of the transistor TR3 is interrupted by the operation of the multi-oscillation circuit 5, the transistors TR1 and TR2 are repeatedly turned on and off at a high speed, so that the minimum current required to start the generator G is obtained. Only flows. Therefore, as in the conventional case, it is possible to minimize the risk of damage to the transistor TR1 due to the continuous flow of current through the transistor TR1.

한편, 계자코일(FC)에 이상이 없을 경우에는 기동전류에 의해 발전기(G)가 구동되면서 전력이 발생하게 되고, 이 전력은 정류회로(RC)를 통해 정류된 다음 축전지(BT)로 충전되게 되는바, 이때 발전기(G)의 중성점단자(N)의 전위가 소정치 이상으로 되면 트랜지스터(TR6)는 ON되고 트랜지스터(TR8)는 OFF되어 충전표시램프(PL)가 꺼지게 되며, 그에 따라 트랜지스터(TR4)가 OFF된다.On the other hand, if the field coil (FC) has no abnormality, the generator (G) is driven by the starting current to generate power, this power is rectified through the rectifier circuit (RC) and then charged to the battery (BT). In this case, when the potential of the neutral point terminal N of the generator G becomes higher than or equal to a predetermined value, the transistor TR6 is turned on and the transistor TR8 is turned off so that the charge display lamp PL is turned off. TR4) turns off.

이렇게 트랜지스터(TR4)가 OFF되게 되면 트랜지스터(TR3)는 OFF되고 트랜지스터(TR2)는 ON되어 트랜지스터(TR1)를 완전히 도통시켜줌으로써 계자전류가 충분히 공급되며, 전압조정작용은 앞서 설명한 작용과 마찬가지로 제너다이오드(ZD) 및 저항(R3, R6, R7)을 통해 이루어지게 된다.When the transistor TR4 is turned off, the transistor TR3 is turned off and the transistor TR2 is turned on to fully conduct the transistor TR1 so that the field current is sufficiently supplied, and the voltage regulating action is the same as the zener diode described above. ZD and resistors R3, R6, and R7.

다음에는 참고적으로 상기 충전표시부(3)의 동작을 설명한다.Next, the operation of the charging display unit 3 will be described for reference.

먼저 스위치(SW)를 ON시켜주면 트랜지스터(TR8)가 ON되어 표시램프(PL)가 점등되게 됨으로써 충전동작이 이루어지고 있음을 외부에 표시하게 된다. 그후 발전기(G)의 중성점단자(N)전위가 소정치 이상으로 되면 상술한 것처럼 트랜지스터(TR6)가 ON되고 트랜지스터(TR8)가 OFF됨으로써 표시램프(PL)가 꺼지고, 이로써 충전이 완료되었음을 나타나게 된다.First, when the switch SW is turned on, the transistor TR8 is turned on so that the display lamp PL is turned on so that the charging operation is performed externally. After that, when the neutral point N potential of the generator G becomes higher than or equal to the predetermined value, the transistor TR6 is turned on and the transistor TR8 is turned off, so that the display lamp PL is turned off, thereby indicating that charging is completed. .

이상에서 설명한 실시예에서 멀티발진회로(5)는 도면에 도시된 회로구성이외에 여타 다른 형태의 발진회로에 대체될 수 있는 것이다.In the embodiment described above, the multi-oscillation circuit 5 may be replaced with other forms of oscillation circuits in addition to the circuit configuration shown in the drawings.

[고안의 효과][Effect of design]

상기와 같이 작동되는 본 고안은 차량의 전원을 정격전압으로 안정하게 유지시켜 줄수 있을 뿐만아니라, 시동시에 멀티발진회로(5)의 작용으로 계자입력단자(F)의 전류를 미소하게 제한해 줌으로써, 계속적인 전류유입으로 인해 트랜지스터(TR1)가 열에 의해 손상되는 것을 방지해주어, 제품의 성능을 안정하게 유지시킬 수 있는 효과가 있다.The present invention operated as described above can not only stably maintain the power supply of the vehicle at the rated voltage, but also limit the current of the field input terminal F slightly by the action of the multi-oscillation circuit 5 at start-up. In addition, since the transistor TR1 is prevented from being damaged by heat due to continuous current inflow, there is an effect of keeping the performance of the product stable.

Claims (1)

발전부(1)와 전압조정부(2), 충전표시부(3) 및 전원부(4)로 이루어진 차량용 전압조정기회로에 있어서, 상기 전압조정부(2)에 미소전류제어용 트랜지스터(TR4, TR5)와 저항(R5, R8, R9)및 콘덴서(C4, C5)로 구성되어 상기 충전표시부(3)와 결속되는 멀티발진회로(5)가 내재된 것을 특징으로 하는 차량용 전압조정기회로.In the vehicle voltage regulator circuit comprising the power generation unit 1, the voltage adjusting unit 2, the charging display unit 3, and the power supply unit 4, the voltage adjusting unit 2 includes the microcurrent control transistors TR4 and TR5 and a resistor ( A voltage regulator circuit for a vehicle, comprising a multi-oscillation circuit (5) inherent to R5, R8, R9) and capacitors (C4, C5) and coupled to the charging display section (3).
KR2019890008094U 1989-06-12 1989-06-12 Circuit controlling voltage for car KR920002184Y1 (en)

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KR920002184Y1 true KR920002184Y1 (en) 1992-03-28

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